Technical Product Specification

Intel® Server Board S2600WP TPS BIOS Setup Interface
Setup Item
Options
Help Text
Comments
DCU Data Prefetcher
Enabled
Disabled
The next cache line will be
prefetched into L1 data
cache from L2 or system
memory during unused
cycles if it sees that the
processor core has
accessed several bytes
sequentially in a cache line
as data.
[Disabled] – Only fetches
cache line with data
required by the processor
(64 bytes).
DCU Data Prefetcher is normally
Enabled, for best efficiency in L1
Data Cache and Memory Channel
use but disabling it may improve
performance for some processing
loads and on certain benchmarks.
DCU Instruction
Prefetcher
Enabled
Disabled
The next cache line will be
prefetched into L1
instruction cache from L2
or system memory during
unused cycles if it sees
that the processor core
has accessed several
bytes sequentially in a
cache line as data.
DCU Data Prefetcher is normally
Enabled, for best efficiency in L1
Instruction Cache and Memory
Channel use but disabling it may
improve performance for some
processing loads and on certain
benchmarks.
Direct Cache Access
(DCA)
Enabled
Disabled
Allows processors to
increase the I/O
performance by placing
data from I/O devices
directly into the processor
cache.
System performance is usually best
with Direct Cache Access Enabled.
In certain unusual cases, disabling
this may give improved results.
Extended ATR
0x03
0x01
Extended Timeout value
for PCIe tuning.
Adjust ATR value for PCIe
performance improvement.
PFloor tuning
Entry Field
maximum Non-
Turbo
Frequency – 3
of installed
Processors –
12, 12 is default
Adjustment of CPU idle
frequency for PCIe Bus
tuning.
Adjustment of CPU idle frequency
for PCIe performance tuning.
SMM Wait Timeout
Entry Field 20 –
3000ms, 20 is
default
Millisecond timeout waiting
for BSP and APs to enter
SMM. Range is 20ms to
3000ms.
Amount of time to allow for the SMI
Handler to respond to an SMI. If
exceeded, the BMC generates an
SMI Timeout and resets the system.
Note: This field is temporary, and
will be removed when no longer
required.
Revision 1.6 Intel order number G44057-007 85